Synchronous approach in interactive multiobjective optimization

doi:10.1016/j.ejor.2004.07.052

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Synchronous approach in interactive multiobjective optimization

2006-05-01

147

PRE

Kaisa Miettinen *

Marko M. Mäkelä

DOI：10.1016/j.ejor.2004.07.052

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Abstract

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We introduce a new approach in the methodology development for interactive multiobjective optimization. Thepresentation is given in the context of the interactive NIMBUS method, where the solution process is based on the classification of objective functions. The idea is to formulate several scalarizing functions, all using the same preference information of the decision maker. Thus, opposed to fixing one scalarizing function (as is done in most methods), we utilize several scalarizing functions in a synchronous way. This means that we as method developers do not make the choice between different scalarizing functions but calculate the results of different scalarizing functions and leave the final decision to the expert, the decision maker. Simultaneously, (s)he obtains a better view of the solutions corresponding to her/his preferences expressed once during each iteration. In this paper, we describe a synchronous variant of the NIMBUS method. In addition, we introduce a new version of its implementation WWW-NIMBUS operating on the Internet. WWW-NIMBUS is a software system capable of solving even computationally demanding nonlinear problems. The new version of WWW-NIMBUS can handle versatile types of multiobjective optimization problems and includes new desirable features increasing its user-friendliness. (c) 2004 Elsevier B.V. All rights reserved.

Keywords:

multiple objective programming

MCDM

Internet

interactive methods

NIMBUS

WWW-NIMBUS

nonlinear programming

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